Finding the Fourth Proportional to 9,764.38, 13,479.51 and 5,571.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,764.38 : 13,479.51 = 5,571.82 : x
2. Step 2: Convert to fraction form
   9,764.38/13,479.51 = 5,571.82/x
3. Step 3: Cross multiply
   9,764.38x = 13,479.51 × 5,571.82
4. Step 4: Simplify right side
   9,764.38x = 75,105,403.41
5. Step 5: Solve for x
   x = 75,105,403.41/9,764.38
6. Step 6: Final answer
   x = 7,691.77